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Samsung Refrigerator

  • Samsung RT18M 6213 WW/AA
    • Compressor MSV4A1AL1R/TT3
    • 0F364DBKB00391P

Problem

  • Even at "5 bars", refrigerator compartment won't cool more than 40 degrees below room temperature (can be 85F in August)
    • "Power Cool" temporarily lowers temperature more

More information

  • In wooden kitchen compartment 33 inches wide, 68 inches high, 27 inches deep, with 3 inch space in back
    • Hot garage behind back wall - aluminum foil on wall minimizes radiant heat.
    • extra open space inside the back refrigerator compartment surrounding round black vent
  • Refrigerator very quiet - expecting more compressor noise
  • Draws 3 to 100 watts, monitored with "Kill-a-Watt" digital meter
  • Freezer compartment works fine at two bars, opened twice per day, often to access "power cool"
  • Added a 300 cubic/foot per minute floor vent blowing air at lower back left side

    • floor vent reduces maximum temperature excursion by 4F, but vent fan is noisy and consumes 40 more watts

Usage

  • Mostly use refrigerator for fresh food, dairy and lots of vegetables
  • Don't use ice or icemaker, not many frozen foods

Purchase and Warranty

  • Purchased 2019 July 9 for $648 from Home Depot 4401 SW 110th Ave Beaverton OR 97005

  • delivered 2019 July 22
  • added 3 year protection plan $90 ... but Home Depot doesn't answer phone within 40 minutes

Photos taken on moderate July day - Click for larger view

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Thermocouple temperatures, top is left compartment wall, bottom is interior upper glass shelf

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Inside of compartment. Thermocouple on "stovetop wall", 300 cfm vent at bottom, power routed through Kill-A-Watt meter, foil radiant barrier and 3 inch styrofoam ball spacer in back

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Kill-A-Watt meter feeding power to refrigerator. Can exceed 100 watts during "Power Cool", usually runs below 3 watts

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Basement: AC Infinity fan and sound baffle to floor vent above. Thermocouple attached to sheet metal duct

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Basement: Duct connection to refrigerator floor vent

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Vents at back bottom of refrigerator. No air blows in or out

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Close-up of left back vent. What's that strange bit of light brown foam just inside the vent?

SamsungRefrigerator (last edited 2020-07-08 17:12:19 by KeithLofstrom)